Vent-controlling device.



PATENTED APR. 14, 1903.

` G; W. WINTHER. VENT GONTEOLLING DEVICE.

APPLICATION FILED DBO. 31, 1901.

H0 MODEL.

UNITED STATES `ATnNT rrrcn.

VENT-'CONTROLLING DEVICE.

SPECIFICATION forming partof Letters Patent No.. 725,189, dated April 14, 1903.

Application filed December 3l, 1901. Serial No. 87,873. Y(No model.) Y

To all whom, t may concern:

Beit known that LCHRISTIAN W. WINTHER, a citizen of the United States, residing at Fedora, in the county of Minerand State of South Dakota, have invented certain new and useful Improvements in Vent-Controlling Devices; and I do hereby declare the following to be a full, clear,'and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved venting-pipe for wellsthat is, for the pump-pipes thereof; and to this end it consists of the novel devices and combina-A tions of devices hereinafter described, and dened in the claim. I-Iitherto devices of this general character have been provided whereby by the use of a connection provided especially for that purpose the venting-valve may be opened and closed at will. In accordance with my present invention vI provide a venting-valve which is opened by a downward movement of the pump-rod and the part carried thereby below the lowest position which it can reach in the act of pumping. This eX- treme downward movement of the pump-rod is preferably accomplished by temporarily disconnecting the said rod from the pumphandle in the one case or from the windmillrod in the other. The well-known purpose of these venting-valves as used in connection' with pump-pipes is to allow the water to run down below the freezing-line whenever the pump is thrown out of action.

My invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several'views.

Figure 1 is a view, partly in side elevation and partly in vertical section, showing the pump, its supply-pipe, and otherdevices and illustrating my improved venting device applied in working position thereto. Fig. 2 is an enlarged vertical section of those portions of the pump pipe and rod to which my improved venting device is applied.

The numeral 1 indicates an ordinary pump, having a pump-rod 2 and handle 3, which rod `dicates the and handle are adapted to be detachably connected by inserting a pin 4 through perforations 5 ot` said parts.

The numeral 6 indicates the lowerend of a windmill-rod, which by means of the pin 4 and perforations 7 is adapted to be detachably connected to the upper end of a pumprod 2.

8 indicates the pump-pipe, which is provided with an ordinary cylinder 9 and above said cylinder with aninterposed sleeve-section 10.

The well illustrated is what is known as a tubular well,` involving what is called an independent pump, and the numeral 11 in- The pump-rod 2 is of course connected to a piston, which works in the cylinder in the ordinary way.

The sleeve-section 10 is located at a depth below the freezing-line, and in one side thereof is a vent-perforation 12, which is normally closed by a valve 18, preferably of rubber, but which may be made of any suitable inaterial. This valve 13 is carried by a leafspring 14, the lower end of which is rigidly secured to the inner and lower portion of the sleeve 10 and the upper end of which is preferably bent slightly inward, as shown at 16.

On the piston-rod 2 is a valve-trip, preferably afforded by an inverted cup 17, adjustably secured to said rod by a set-screw 18. The lower edge of the trip-cup 17 stands in such position that when the pump-rod is disconnected and allowed to lower to an extreme position it'will engage the cam end 16 of the valve-support 14 and move the valve 13 into an open position, as indicated in Fig. 1. The lowest position which the said trip 17 will occupy in the pumping action is indicated in Fig. 2.

The device above described is of course capable of considerable modification within the scope of myV invention as herein claimed.

WhatA I claim, and desire to secure by Letters Patent of the United States, is as follows:

The combination with a pump havinga supply-pipe and a pump-rod, the latter of which outer tube or sheath of such well.

2 fzaiee is detaehably connected to the pump-handle said valve into an open position, substantially or other power device, of a vent-opening in as described. lo the su pply-pipe, a leaf spring or support car- In testimony whereof I affix my signature rying a Valve which normally closes said Ventin presence of two witnesses.

5 opening, and a depending trip carried by the CHRISTIAN W. WNTHER.

pump-rod and adapted under an extreme Witnesses: downward movement of the pump-rod, to en- H. R. BARNES,

gage the free end of said leaf-spring and force CLYDE SHOEMAKER. 

